Ion- and electron-transport properties of a single particle of disordered carbon during the lithium insertion reaction

Matsuhiko Nishizawa; Hiromichi Koshika; Ryuichi Hashitani; Takashi Itoh; Takayuki Abe; Isamu Uchida

doi:10.1021/jp990604t

Ion- and electron-transport properties of a single particle of disordered carbon during the lithium insertion reaction

Matsuhiko Nishizawa, Hiromichi Koshika, Ryuichi Hashitani, Takashi Itoh, Takayuki Abe, Isamu Uchida

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

Abstract

The electrical de conductance (S) and the solid-state diffusion coefficient of the lithium ion (D_Li+) were evaluated for a single spherical particle of mesocarbon microbead (MCMB) heat-treated at 1000°C. The measurements were conducted in situ during the electrochemical lithium insertion into the MCMB by using microelectrode-based techniques. The data obtained are discussed as functions of the electrode potential and of the amount of inserted lithium. Both parameters (S and D_Li+) were found to depend on the lithium content, and their variation manner changed around 0.6 V vs Li/Li⁺ at which the inserted lithium amount was ca. 25% of the total insertion. The results would arise from the difference between the first and the second half of the lithium insertion reaction mechanisms.

Original language	English
Pages (from-to)	4934-4936
Number of pages	3
Journal	Journal of Physical Chemistry B
Volume	103
Issue number	24
DOIs	https://doi.org/10.1021/jp990604t
Publication status	Published - 1999 Jun 17

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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abstract = "The electrical de conductance (S) and the solid-state diffusion coefficient of the lithium ion (DLi+) were evaluated for a single spherical particle of mesocarbon microbead (MCMB) heat-treated at 1000°C. The measurements were conducted in situ during the electrochemical lithium insertion into the MCMB by using microelectrode-based techniques. The data obtained are discussed as functions of the electrode potential and of the amount of inserted lithium. Both parameters (S and DLi+) were found to depend on the lithium content, and their variation manner changed around 0.6 V vs Li/Li+ at which the inserted lithium amount was ca. 25% of the total insertion. The results would arise from the difference between the first and the second half of the lithium insertion reaction mechanisms.",

author = "Matsuhiko Nishizawa and Hiromichi Koshika and Ryuichi Hashitani and Takashi Itoh and Takayuki Abe and Isamu Uchida",

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T1 - Ion- and electron-transport properties of a single particle of disordered carbon during the lithium insertion reaction

AU - Nishizawa, Matsuhiko

AU - Koshika, Hiromichi

AU - Hashitani, Ryuichi

AU - Itoh, Takashi

AU - Abe, Takayuki

AU - Uchida, Isamu

PY - 1999/6/17

Y1 - 1999/6/17

N2 - The electrical de conductance (S) and the solid-state diffusion coefficient of the lithium ion (DLi+) were evaluated for a single spherical particle of mesocarbon microbead (MCMB) heat-treated at 1000°C. The measurements were conducted in situ during the electrochemical lithium insertion into the MCMB by using microelectrode-based techniques. The data obtained are discussed as functions of the electrode potential and of the amount of inserted lithium. Both parameters (S and DLi+) were found to depend on the lithium content, and their variation manner changed around 0.6 V vs Li/Li+ at which the inserted lithium amount was ca. 25% of the total insertion. The results would arise from the difference between the first and the second half of the lithium insertion reaction mechanisms.

AB - The electrical de conductance (S) and the solid-state diffusion coefficient of the lithium ion (DLi+) were evaluated for a single spherical particle of mesocarbon microbead (MCMB) heat-treated at 1000°C. The measurements were conducted in situ during the electrochemical lithium insertion into the MCMB by using microelectrode-based techniques. The data obtained are discussed as functions of the electrode potential and of the amount of inserted lithium. Both parameters (S and DLi+) were found to depend on the lithium content, and their variation manner changed around 0.6 V vs Li/Li+ at which the inserted lithium amount was ca. 25% of the total insertion. The results would arise from the difference between the first and the second half of the lithium insertion reaction mechanisms.

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Ion- and electron-transport properties of a single particle of disordered carbon during the lithium insertion reaction

Abstract

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